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SS Lac in Open Cluster NGC 7209
Kang, Young Woon
We present IUE observations in far ultraviolet region for SS Lac in open cluster NGC 7209. The IUE short wavelength spectrum and long wavelength spectrum were merged to produce an energy distribution curve between 1200A and 3200A. The curve has been unreddened to take out reddening effect. Then the surface temperature, gravity and abundance of SS …
On an improved geostationary catalog
Sochilina, A. S.; Kiladze, R. I.; Grigoriev, K. V. +1 more
In the previous geostationary catalog 1994 a possibility to calculate the evolution of orbital data with the aid of the initial improved orbits for a long-term interval was shown. This catalog was used for the identification of 12 000 photographic observations and for the ephemeris prediction. The new catalog of improved orbits is based on a more …
Solar and heliospheric plasma physics. Proceedings. 8th European Solar Physics Meeting, Halkidiki (Greece), 13 - 18 May 1996.
Heinzel, P.; Simnett, G.
The main topic was the interaction of the Sun with the heliosphere, focused on first results from SOHO and new results from Ulysses. The following topics were dealt with: solar dynamos, solar shape, convection zone, solar pulsations, solar activity, solar atmosphere, solar corona, solar spectra, solar prominences, solar flares, UV spectra, solar w…
The General Catalog of Positions and Proper Motions of 6637 Bright Stars (newbs)
Khrutskaya, E. V.
New positions and proper motions for stars to a limiting magnitude of 7.9 from +90 up to -90 degrees in declination over the whole sky (NewBS) were obtained as a result of a thorough revision of observational material of the International Bright Star Program. 21 catalogs with right ascensions (alpha ) and 16 catalogs with declinations (delta ) wer…
Observations of Low Energy Neutral Particle Fluxes from Jupiter: Gas/Ulysses Results
Keppler, E.; Rosenbauer, H.; Witte, M. +1 more
FGS Observations of Two High-Velocity Stars
Osborn, Wayne; MacConnell, D. J.
The Hubble Space Telescope Fine Guidance System has been used to obtain precise astrometry in the fields of two stars of large space velocity: R 50 = G 166-37 and W 624 = G 16-25. The measures indicate a relative trigonometric parallax for R 50 of 4.0 mas, which implies a space velocity in the galactocentric rest frame of 467 km/sec. The derived p…
Results of a plasmoid model compared with data of coronal mass ejections
Bochsler, P.; Balsiger, H.; Wimmer-Schweingruber, R. F. +2 more
The motion of closed magnetic structures, plasmoids, in the solar atmosphere is examined in a simple model. A system of equations describing the dynamics, the internal energy balance, and the ionisation processes is solved numerically. While the plasmoids are accelerated and heated, ionisation and recombination processes of the ions take place. De…
Corotating Ion Enhancements observed by IMP 8 and Sampex at Earth and by ULYSSES at High Heliographic Latitudes
Mason, G. M.; Richardson, I. G.; Mazur, J. E.
Time and Energy Dependence of 26-Day Recurrent Decreases of >100 MeV Protons in the Inner Southern Heliosphere and its Correlation to Latitudinal Gradients: Ulysses COSPIN/KET Results
Kunow, H.; Bothmer, V.; Schmidt, J. +4 more
Observational signatures of nanoflare heated solar stellar coronae
Judge, P. G.; Hansteen, V. H.; Wikstøl, Ø.
Using time-dependent dynamical models of the radiating gas in coronal flux tubes, we identify features in UV spectral line profiles that can reveal the direction in which energy flows through the solar transition region, in observations without temporal or spatial resolution. The profile features survive spatial and temporal averaging through non-…